IPA: /ɪnˈtriːt/
KK: /ɪnˈtrit/
A request or appeal made to someone, often in a serious or emotional way.
She made an entreatment for help during the difficult times.
Entreatment is formed from "en-" (meaning to cause to be in) and "treat" (from Old French *traiter*, meaning to handle or deal with). The word refers to the act of treating someone or something in a particular way, often with a sense of pleading or requesting.
Think of 'causing to be in' a state of 'handling' or 'dealing with' someone — that's why entreatment means to treat someone, often in a pleading manner.